Alessandro Algardi was an extremely talented sculptor whose speciality was creating the
so called "marble pictures", an example of which is ""St. Leo repulsing Attila" in S. Pietro.
In S. Niccolò da Tolentino, a small church built by
the Pamphilj there is his very sophisticated
and polished coat of arms of the family of Pope Innocent X. In the background
of this page you can see a preliminary drawing by Filippo Juvarra.